Regular polyhedron Meaning, Definition & Usage

  1. noun any one of five solids whose faces are congruent regular polygons and whose polyhedral angles are all congruent
    ideal solid; Platonic body; Platonic solid; regular convex polyhedron; regular convex solid.

WordNet


Definitions
  1. (Geom.), a polyhedron whose faces are equal regular polygons. There are five regular polyhedrons, the tetrahedron, the hexahedron, or cube, the octahedron, the dodecahedron, and the icosahedron.

Webster 1913